I don't think either of the posts you've replied to in this thread state that all employees at all companies require physical proximity to collaborate effectively. Just that Matasano (by virtue of its leadership) prefers proximity.

It's entirely reasonable that some people prefer proximity over remote arrangements. People who don't aren't likely to enjoy working at Matasano. That doesn't negate the existence of other perfectly good options for them, as tptacek pointed out.